Texas Journal of Microscopy - Texas Society for Microscopy
Texas Journal of Microscopy - Texas Society for Microscopy
Texas Journal of Microscopy - Texas Society for Microscopy
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Plate 25. Calcium oxalate crystal twins isolated from Vitis vulpina. 1. Isolated raphide crystals without their crystal matrix. Note<br />
also the three isolated druses. Each group <strong>of</strong> raphides contains about 120-200 twin crystals. 2. Raphide crystals spread out by<br />
the addition <strong>of</strong> water to several packets. Note that there are several small initials seen on the surface <strong>of</strong> the group <strong>of</strong> raphides. 3-<br />
4. Isolated mature raphides and raphide initials. Several <strong>of</strong> the initials are intermediate in size. 4. Inset shows two intermediatesized<br />
initials. Two isolated mature raphides show the narrow and the sharp pointed ends <strong>of</strong> the twins. 5. Enlarged view <strong>of</strong> several<br />
raphide initials. 6. Two raphide initials with holes between the individual twins. Adapted from Arnott and Webb, 2000.<br />
Tex. J. Micros. 38: , 2007<br />
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